Study Finds Little Evidence to Support Use of Acetaminophen

By Pat Anson, PNN Editor

Acetaminophen is the most widely used over-the-counter pain reliever in the world — the active ingredient in Tylenol, Excedrin, and hundreds of pain medications. The U.S. Centers for Disease Control and Prevention considers acetaminophen a “first-line” treatment for low back pain, osteoarthritis and migraine.

But a comprehensive review published in the Medical Journal of Australia found little or no evidence to support the use acetaminophen for most pain conditions. Researchers at the University of Sydney analyzed 36 studies involving over 19,000 people and concluded that the pain-relieving benefits of acetaminophen – known as paracetamol outside the U.S. -- are modest, at best.

“For most conditions, evidence regarding the effectiveness of paracetamol is insufficient for drawing firm conclusions. Evidence for its efficacy in four conditions was moderate to strong, and there is strong evidence that paracetamol is not effective for reducing acute low back pain,” wrote senior author Christopher Maher, PhD, a professor at the Sydney School of Public Health.

Maher and his colleagues looked at 44 pain conditions often treated with paracetamol, and could find only four for which there is high-quality evidence:

• Knee and hip osteoarthritis

• Tension headache

• Perineal pain after childbirth

• Craniotomy

Evidence for the other 40 pain conditions was low quality or inconclusive, including:

• Acute and chronic low back pain

• Major surgery

• Dental surgery

• Migraine

• Rheumatoid arthritis

• Hip fracture

• Cancer pain

• Neuropathic pain

“While paracetamol is widely used, its efficacy in relieving pain has been established for only a handful of conditions, and its benefits are often modest. Although some trials have evaluated regimens that may have underestimated its utility, the clinical application of paracetamol is primarily guided by low quality evidence, at best,” researchers said.  

A 2015 study in the British Medical Journal also found that paracetamol was ineffective for low back pain and provided little benefit to people with osteoarthritis.

In recent years, some U.S. hospitals have started using paracetamol as an alternative to opioids for post-operative pain, a practice not supported by the Australian study.

One limitation of the University of Sydney review is that most of the studies that were evaluated only used a single dose of paracetamol, which does not reflect its typical use.  Perhaps for that reason, researchers found that adverse events were similar for patients receiving paracetamol or a placebo.

Over 50 million Americans use paracetamol (acetaminophen) each week to treat pain and fever. Long-term use has long been associated with liver, kidney, heart and blood pressure problems. Acetaminophen overdoses are involved in about 500 deaths and over 50,000 emergency room visits in the U.S. annually.

Is Your Spinal Pain Inflammatory or Neuropathic?

By Forest Tennant, PNN Columnist

Every person with Adhesive Arachnoiditis (AA) or other spinal canal disorder needs to determine if their pain is primarily inflammatory, neuropathic or both. Why? The treatments are different.

AA is fundamentally an inflammatory disease that involves two different intraspinal canal tissues: the cauda equina nerve roots and the arachnoid-dural covering of the spinal canal. The inflammation causes damage to the nerve roots, so electricity either can’t pass or it doesn’t pass in a smooth, natural flow.

Nerve damage that blocks or alters electricity conduction is called “neuropathic” pain. AA usually has both inflammatory and neuropathic pain, but the inflammation may resolve and leave behind damaged nerve roots and neuropathic pain.

The inflammatory and neuropathic pain of AA may also develop into Intractable Pain Syndrome, which is constant, incurable pain with cardiovascular, endocrine (hormonal) and autoimmune complications.

Persons with AA usually need to treat both kinds of pain – inflammatory and neuropathic --   but one type may be predominant. A blood test for inflammatory markers is helpful, but not totally diagnostic.

If your pain improves with a trial of ketorolac (1 or 2 injections) or a corticosteroid (Medrol Dose Pak or dexamethasone), you have active inflammation that must be treated. We also recommend botanical anti-inflammatory agents, such as curcumin/turmeric, Andrographis and serrapeptase.

Prescription medications for neuropathic pain include gabapentin (Neurontin), diazepam, carisoprodol, topiramate, Lyrica and Cymbalta.

Every person with AA of the cervical and/or lumbar spines should experiment with topical medications, such as the Salonpas patch, lidocaine gel or patch, Voltaren gel and diclofenac (prescription needed).

Topical medication that is applied and massaged into the skin may dissolve through the tissues to the inflamed or damaged area. On average, you can expect 10 to 25% additional pain relief, plus the potential to permanently reduce your pain. Sometimes topical  medication will relieve painful areas that other drugs taken orally or by injection cannot reach.

Forest Tennant is retired from clinical practice but continues his research on the treatment of intractable pain and arachnoiditis. This column is adapted from bulletins recently issued by the Arachnoiditis Research and Education Project. Readers interested in subscribing to the bulletins should send an email to tennantfoundation92@gmail.com.

The Tennant Foundation gives financial support to Pain News Network and sponsors PNN’s Patient Resources section.  

New European Guideline Says Opioids ‘Do Not Work’ for Many Types of Chronic Pain

By Pat Anson, PNN Editor

Calling opioid medication a “two edged sword,” the European Pain Federation (EFIC) has released new guidelines that strongly recommend against using opioids to treat fibromyalgia, low back pain, migraine, irritable bowel syndrome and other types of chronic non-cancer pain.

“The new recommendations advise that opioids should not be prescribed for people with chronic primary pain as they do not work for these patients,” the EFIC said in a statement.

However, the guideline states that low doses of opioids may be suitable for treating “secondary pain syndromes” caused by surgery, trauma, disease or nerve damage, but only after exercise, meditation and other non-pharmacological therapies are tried first.

“Opioids should neither be embraced as a cure‐all nor shunned as universally dangerous and inappropriate for chronic noncancer pain. They should only be used for some selected chronic noncancer pain syndromes if established non‐pharmacological and pharmacological treatment options have failed,” the guideline states. “In this context alone, opioid therapy can be a useful tool in achieving and maintaining an optimal level of pain control in some patients.”

Opioid pain relievers are not as widely used in Europe as they are in the United States or Canada. The EFIC said it was trying to “allay concerns over an opioid crisis” developing in Europe, as it has in North America.       

“As the leading pain science organisation in Europe, it is crucial that EFIC sets the agenda on issues such as opioids, where there are growing societal concerns. These recommendations clarify what role opioids should play in chronic pain management,” EFIC President Brona Fullen said in a statement.

The guideline’s lead author, Professor Winfried Häuser, said he and his colleagues tried to strike a middle ground on the use of opioids.

“The debate on opioid-prescribing for chronic non-cancer pain has become polarized: opioids are either seen as a dangerous risk for all patients, leading to addiction and deaths, or they are promoted as most potent pain killers for any type of pain,” said Häuser, who is an internal medicine specialist in Germany.

“Opioids are still important in the management of chronic non-cancer pain – but only in some selected chronic pain syndromes and only if established non-pharmacological and non-opioids analgesics have failed or are not tolerated.”

PROP Consulted for European Guideline

The guideline was developed by a 17-member task force composed of European experts in pain management, including 9 delegates selected by EFIC’s board “who advocate and who are critical with the use of opioids.” Only one delegate from Pain Alliance Europe represented patients.

The recommendations developed by the task force were reviewed by five outside experts, including Drs. Jane Ballantyne and Mark Sullivan, who belong to Physicians for Responsible Opioid Prescribing (PROP), an anti-opioid activist group in the U.S.  Ballantyne is PROP’s President, while Sullivan is a PROP board member. Several changes suggested by the outside experts were adopted.

Coincidentally, Ballantyne, Sullivan and three other PROP board members were involved in the drafting of the opioid guideline released in 2016 by the U.S. Centers for Disease Control and Prevention. That controversial guideline is now being rewritten by the CDC after voluminous complaints from patients and doctors that the recommendations led to forced tapering, withdrawal, uncontrolled pain and suicides.

Sullivan and two other PROP board members were also involved in drafting Canada’s 2017 opioid guideline, which was modeled after the CDC’s and provoked similar complaints from Canadian pain patients.

90 MME Recommended Limit

The CDC and Canadian opioid guidelines appear to have been used as resources by the EFIC task force, which adopted many of the same recommendations, even while acknowledging the low quality of evidence used to support them.   

One recommendation is straight out of the CDC guideline, advising European doctors to “start low and go slow.” Prescribers are urged to start patients on low doses of 50 morphine milligram equivalents (MME) or less a day and to avoid increasing the dosage above 90 MME/day.

One significant difference with the North American guidelines is that the EFIC recommends that opioids not be prescribed for fibromyalgia, migraines and other chronic “primary pain” conditions for which there is no known cause – suggesting those disorders have an emotional or psychological element that will lead to opioid abuse.

“Prescription of high doses of opioids to patients with primary pain syndromes might have been a factor driving the opioid crisis in North America,” the EFIC guideline warns.

“This was further compounded by patient characteristics that included physical and psychological trauma, social disadvantage and hopelessness that served as a trigger for reports of pain intensity prompting prescriptions of more opioids.”

Secondary pain conditions for which opioids “can be considered“ include multiple sclerosis, stroke, restless leg syndrome, Parkinson’s disease, rheumatoid arthritis, phantom limb pain, non-diabetic neuropathy, spinal cord injuries and Complex Regional Pain Syndrome (CRPS). 

Unlike the North American guidelines, the EFIC acknowledges that there are physical and genetic differences between patients. Some patients who are rapid metabolizers “might require higher dosages of opioids than the ones recommended by the guidelines.“

EFIC GRAPHIC

The EFIC also warns that its guideline should not be used to justify abruptly tapering or discontinuing opioids for anyone already prescribed at higher dosages. The recommendations are also not intended for the management of short-term acute pain, sickle cell disease or end-of-life care.

Home-Based Virtual Reality Reduces Chronic Low Back Pain

By Pat Anson, PNN Editor

A new clinical study has found that home-based virtual reality (VR) therapy can significantly reduce pain levels in people suffering from chronic lower back pain. Patients who watched VR programs also reported better mood, reduced stress and that pain interfered less with their sleep.

The study, published in the Journal of Medical Internet Research, is the first controlled trial to compare home-based VR therapy to a “sham” or placebo treatment for chronic pain. The research was funded by AppliedVR, a Los Angeles-based company that is developing therapeutic VR content to help treat pain and other conditions.

Eighty-nine people used the company’s EaseVRx headset daily for eight weeks, immersing themselves in relaxing and meditative VR programs designed to make their pain seem less important, similar to cognitive behavioral therapy. A control group received the sham treatment, watching routine nature scenes with the headset. All participants had chronic low back pain for at least six months.   

By the end of the study, 87 percent of people in the VR group reported less pain intensity, with nearly two-thirds experiencing at least a 30% reduction in pain compared to the control group. There were also significant improvements in sleep, mood and stress in the VR group.

Importantly, the improvements in pain and other symptoms were cumulative over time – meaning the relief was long-lasting and not just when people were watching VR programs.

“If you look at the results graph, you’re able to see the trajectory of pain and pain intensity very reliably declining over the course of the eight weeks. It’s a really strong time trend. It’s not just a random effect,” explained Beth Darnall, PhD, AppliedVR’s chief science advisor.

You can see the graph below. Over the course of 56 days, average pain intensity fell by 43% in patients using the EaseVRx headset, compared to 23% in the control or sham group.

JOURNAL OF MEDICAL INTERNET RESEARCH

Most of the research to date on VR therapy has focused on treating acute pain in hospitalized patients. AppliedVR is trying to demonstrate that virtual reality can also be used to treat chronic pain at home. A small study released last summer showed that home-based VR therapy reduced pain in people with fibromyalgia and chronic low back pain.

Darnall was hesitant to say if there were any pain conditions that VR therapy might not useful for.

“At the end of the day, pain is pain,” said Darnall, who is a pain psychologist at Stanford University. “This basic approach, in which we’re equipping people with self-regulatory skills, is going to be beneficial and broadly applicable for every pain condition.

“We have multiple studies in progress that are testing this device on different populations. It’s really going to be an exciting year, because there’s going to be an explosion of research that’s really going to inform our understanding of how this may help people across different disease conditions.”   

AppliedVR’s headset received breakthrough device designation from the Food and Drug Administration last year. The company hopes to get clearance from the FDA later this year to begin selling the devices. Due to a recent decision by Medicare to start covering breakthrough medical devices, the company is hopeful that private insurers will also start paying for VR therapy. 

Stem Cells Restore Function in Patients Paralyzed by Spinal Cord Injuries

By Pat Anson, PNN Editor

Intravenous injection of mesenchymal stem cells (MSCs) in patients paralyzed by spinal cord injuries led to significant improvement in their motor functions, according to a team of researchers at Yale University and Sapporo Medical University in Japan.

The study findings, published in the Journal of Clinical Neurology and Neurosurgery, focused on 13 patients who suffered spinal cord injuries (SCIs) after falls or trauma. Some lost the ability to use their arms and legs, while others suffered coordination and sensory loss, or experienced bowel and bladder dysfunction.

For more than half of the patients, substantial improvements in motor function were observed within weeks of being injected with autologous MSCs derived from their own bone marrow. Although this was a small observational Phase 2 study, researchers are excited by the findings.

"The idea that we may be able to restore function after injury to the brain and spinal cord using the patient's own stem cells has intrigued us for years," said senior author Stephen Waxman, MD, a professor of neurology, neuroscience and pharmacology at Yale. "Now we have a hint, in humans, that it may be possible."

One of the patients profiled was a 34-year-old man who was left partially paralyzed and bedridden after a fall. He received an intravenous injection of MSCs 47 days after his injury. Two weeks after the infusion, voluntary movement was restored to his lower extremities and he was walking with the support of a walker.

In another case, a 47-year-old man left bedridden after a diving accident showed rapid improvement after a stem cell infusion. He was able to drive a wheelchair the next day, walk and climb stairs after two weeks, and eat independently after eight weeks.

Other patients paralyzed after similar injuries were able to breath again without assistance, regain control of their bowel functions, and perform independent living tasks such as dressing and grooming.

“Although this initial case study was unblinded and uncontrolled, the SCI patients appeared to demonstrate a tendency of relatively rapid improvement of neurological function that was often apparent within a few days following infusion of MSCs,” researchers said.

“We would emphasize that this case series describes an early study on a small number of patients. In addition to being unblinded and uncontrolled, this study has a number of limitations. We cannot rule out observer bias nor a contribution of surgical intervention to recovery in cases where this intervention occurred, or spontaneous recovery.”

Other case studies have also shown that stem cells can restore motor and sensory function in patients paralyzed by spinal cord injuries.

The Mayo Clinic reported in 2019 that a California man paralyzed from the neck down in a surfing accident was able to walk again after being injected with his own stem cells. Researchers emphasized the man was a “super-responder” and that other paralyzed patients injected with stem cells don’t have such a dramatic recovery.

According to the National Spinal Cord Injury Statistical Center, over 17,000 Americans suffer spinal cord injuries each year. Chronic pain is a serious problem that can result from SCI, affecting about two-thirds of patients, with one out of three reporting their pain as severe.

Promising Results for Stem Cell Treatment of Degenerative Disc Disease

By Pat Anson, PNN Editor

An Australian regenerative medicine company has released positive results from a Phase III randomized trial showing that a single injection of its proprietary stem cell product can provide long-term relief for people with chronic lower back pain caused by degenerative disc disease.

Mesoblast Limited said the results are so promising it plans to meet with the U.S. Food and Drug Administration to discuss ways to accelerate approval of the drug as a treatment that reduces the use of opioid pain medication.

The company’s stem cell product -- remestemcel-L -- has been under development for several years. It uses mesenchymal precursor cells taken from the bone marrow of healthy donors to reduce inflammation by inhibiting the production of pro-inflammatory cytokines by white blood cells.

Sixty percent of the patients in the clinical trial who were injected with remestemcel-L reported minimal or no pain after 12 months. After 24 months, 54 percent reported little or no pain, with the greatest pain reduction in patients in the early stages of degenerative disc disease. Many patients also significantly reduced their use of opioids during the study period.

“The durable pain reduction for at least two years from a single administration indicates that rexlemestrocel-L has the potential to change the treatment paradigm for chronic low back pain due to inflammatory disc disease, a condition that affects as many as seven million patients across the United States and Europe, and to prevent or reduce opioid use and dependence,” Dr. Silviu Itescu, CEO of Mesoblast, said in a statement.

Over 400 patients were enrolled in the Phase III trial, which was conducted at 48 sites around the world, mostly in the United States. Although Mesoblast told physicians and patients not to change any medications during the trial, after 24 months there was a 40% reduction in opioid use in patients injected with rexlemestrocel-L. Those who were given a placebo saline injection increased their daily opioid consumption.

In a previous study of patients with chronic lower back pain who did not respond to conventional treatment, a single injection of remestemcel-L also reduced pain for at least two years.

The FDA has prioritized the development of new pain treatments that reduce the use of opioids. Although the agency has taken a dim view of some stem cell therapies as “unproven and potentially dangerous,” Mesoblast believes the FDA will be more open-minded about its rexlemestrocel-L treatment. Last year the agency approved an investigational new drug application for rexlemestrocel-L as a therapy for COVID-19.

“We now have two studies that show significant pain reduction and we’re fully prepared to have a discussion with FDA on a path forward,” said Mesoblast Chief Medical Officer Dr. Fred Grossman. “We’re going to get into discussions to see if there’s an accelerated path. Or, if we do need to do another study, we now have a very defined patient population where we see significant pain reduction.”

Antidepressants Ineffective for Back Pain and Osteoarthritis

By Pat Anson, PNN Editor

Antidepressants like duloxetine (Cymbalta) are increasingly being prescribed to treat various types of pain, but a new study shows the medications are largely ineffective for people suffering from chronic back pain or osteoarthritis and may even cause harm.

Many clinical guidelines recommend using antidepressants as pain relievers – even when depression is not involved -- yet evidence supporting that use is uncertain. To address that knowledge gap, researchers at the University of Sydney reviewed data from 33 controlled trials involving more than 5,000 adults who took antidepressants for low back or neck pain, sciatica, or hip or knee osteoarthritis.

Their findings, published in The BMJ, show that for people with back pain the effects of antidepressants were too small to be worthwhile, but for those with osteoarthritis there may be a small beneficial effect.

“The use of antidepressants to treat people with chronic back pain and osteoarthritis is increasing worldwide, but prior to our work, it was not clear whether antidepressants relieved pain or were safe,” said lead author Dr. Giovanni Ferreira, PhD, a postdoctoral research fellow at the Institute for Musculoskeletal Health at the University of Sydney. 

“We conducted a review of all randomised clinical trials evaluating the efficacy of antidepressants for people with back pain or knee osteoarthritis and found that for back pain the antidepressants were either ineffective or provided a very small effect, which was unlikely to be perceived as worthwhile by most patients. For people with osteoarthritis, effects were still small, but could be potentially perceived as worthwhile by some patients” 

Ferreira and his colleagues reviewed six classes of antidepressants: serotonin-noradrenaline reuptake inhibitors (SNRIs); selective serotonin reuptake inhibitors (SSRIs); noradrenaline-dopamine reuptake inhibitors (NDRIs); tricyclic antidepressants; and tetracyclic antidepressants. 

Results showed that SNRIs such as duloxetine reduced back pain after three months, but the benefits were so small they were unlikely to be considered clinically important to most patients. SNRIs had a slightly stronger effect on sciatica and osteoarthritis pain. 

Tricyclic antidepressants were ineffective for back pain, but might reduce pain in people with sciatica, although the evidence for that was weak.  

Industry Funded Studies 

Importantly, about two-thirds of people taking SNRI antidepressants experienced an adverse event such as nausea, fatigue, mood swings and weight gain.

“Many people are being treated with these medications that may not be helping their pain and may be doing them harm,” said Ferreira, adding that doctors need to be upfront with patients about possible side effects.

Researchers say the long-term effects of antidepressants prescribed for chronic pain are not well known and many of the studies that do exist were sponsored by industry, raising the risk of bias. 

“Many people are being treated with these medications that may not be helping their pain and may be doing them harm.”

— Dr. Giovanni Ferreira

“Large, definitive trials free of industry ties are urgently needed to evaluate the efficacy of antidepressants,” Ferreira said. “There needs to be more transparency about how evidence coming from those trials is appraised by guideline panels. A good starting point would be to consider all industry-funded trials to be at high risk of bias, and downgrade the strength of recommendations where industry-sponsored trials represent an important part of the available evidence.”

The Food and Drug Administration recently approved duloxetine as a treatment for fibromyalgia in pediatric patients, largely on the basis of a small trial conducted by Eli Lilly, Cymbalta’s manufacturer. Children enrolled in the study did show a modest improvement in pain, but several of them had serious adverse events, including two attempted suicides, suicidal thoughts, an intentional drug overdose, depression and hallucinations.

In their published findings in the journal Pediatric Rheumatology, Eli Lilly researchers downplayed the adverse events associated with duloxetine, saying they were not drug related or “not significantly different” than those of children on placebo. The two attempted suicides aren’t even mentioned.

A common complaint of patients who take duloxetine is how quickly they become dependent and what happens when they stop taking the drug. Many complain of severe withdrawal symptoms, including electric-like sensations called “brain zaps.”

Duloxetine’s checkered history is well known at the FDA. The agency’s adverse events reporting system has recorded nearly 35,000 cases involving duloxetine since 2007, most of them classified as psychiatric disorders. Over 4,000 of those adverse events resulted in death.

Why Water Soaking Works

By Forest Tennant, PNN Columnist

There is no medical treatment older than water soaking. It is legend and still works. Adhesive Arachnoiditis and other Spinal Canal Inflammatory Disorders (SCID’s) are particularly helped by water soaking – so much so that we consider it an essential treatment.

Why water soaking relieves pain has been a mystery until recent times. It is known that damaged or “dead” nerves won’t conduct  the body’s natural electric currents, so electricity backs up and is trapped or retained in body tissues. The result is more inflammation and pain “all over.”

Electricity has a negative charge and water tends to have a positive charge, so it pulls out excess electricity from the body, reducing inflammation and pain. If the water contains a mineral, it will pull out even more electricity. That is why mineral hot baths and Epsom Salts are so effective.

The lumbar-sacral spinal canal is loaded with nerve roots. They constantly conduct electric currents that go from the spinal cord to the legs, feet, bladder, sex organs and intestine.

Any damage, by any cause, to the spinal canal nerve roots causes a backup of electricity which is painful and produces even more inflammation. To prevent disease progression, daily water soaking can be most helpful.

Types of Water Soaking

You don’t have to have a jacuzzi or pool to do water soaking. A bathtub is great, but most of us take showers. When you shower, keep the water as hot as you can stand, and massage and stretch your back muscles as the hot water runs over your back. Soaking for 10 to 15 minutes in a jacuzzi, pool or bathtub is preferable, but hot showers morning and night is about as good.

Don’t forget the Epsom Salts. The body normally excretes its excess electricity into the air, mainly through nerve ends in the hands, head and feet. Foot soaking, particularly with Epsom Salts or other herbal salts, is an age-old remedy that attracts the electric currents that travel down the sciatic and other leg nerves.

Another soaking technique is a warm, water-soaked towel or other wet wrap placed over the lower back for 5-10 minutes. Remember, water soaking isn’t an “all wet” idea.

Forest Tennant is retired from clinical practice but continues his research on the treatment of intractable pain and arachnoiditis. This column is adapted from bulletins recently issued by the Arachnoiditis Research and Education Project . Readers interested in subscribing to the  bulletins should send an email to tennantfoundation92@gmail.com.

The Tennant Foundation gives financial support to Pain News Network and sponsors PNN’s Patient Resources section.  

Exercise Is Best Treatment for Low Back Pain, But Why?

By Pat Anson, PNN Editor

There has long been a consensus that the best way to treat chronic lower back pain (CLBP) – the world’s leading cause of disability – is by staying active and exercising. But a new study by Australian researchers failed to identify precisely why exercise is beneficial.

“A lot of treatments have stemmed from studies for people with CLBP, but the one with the most consistent evidence of benefit is exercise,” says senior author Matt Jones, PhD, an exercise physiologist, clinician and researcher at the UNSW Sydney School of Medical Sciences. “Despite decades of research in the area and more than 100 studies we analysed in our review, we still do not have a good idea of why exercise might be effective for CLBP.”

Jones and his colleagues recently reported their findings in the journal Musculoskeletal Science and Practice. They reviewed 110 research papers on CLBP conducted in Australia, United States, China, Brazil and Europe, and found little agreement on why researchers thought exercise relieved lower back pain.

“Researchers proposed common reasons as to why exercise was beneficial, including improvements in fitness – for example, core stability, aerobic fitness – and improvements in mood and confidence,” Jones said. “But the effects of these proposed reasons on outcomes for people with CLBP were seldom examined in the papers.

“There have been trends in research over time, where everyone focuses on a ‘flavour of the month’ – like motor control or McKenzie therapy, for example – but because the effects of exercise are broad and it impacts on many different systems in the human body, it’s difficult for researchers to pinpoint exactly why they think it might be benefiting people with pain.”

At any given time, over 500 million people worldwide are suffering from CLBP, which is “non-specific” back pain lasting three months or longer – not the severe back pain caused by degenerative disc disease, spinal injuries, arthritis and other chronic conditions. CLBP mostly affects adults of working age in lower socioeconomic groups, who often have physically demanding jobs.

A 2018 review published in The Lancet by an international team of researchers found that CLBP is often treated with bad advice, inappropriate tests, risky surgeries and painkillers. The authors said there was limited evidence to support the use of opioids for low back pain, and epidural steroid injections and acetaminophen (paracetamol) were not recommended at all.

“The majority of cases of low back pain respond to simple physical and psychological therapies that keep people active and enable them to stay at work,” said lead author Professor Rachelle Buchbinder of Monash University in Australia. “Often, however, it is more aggressive treatments of dubious benefit that are promoted and reimbursed.”

Jones said the aggressive treatments may not work because they don’t address underlying psychological reasons for back pain.

“Chronic pain is tricky and there are a lot of factors that can contribute to it – so, it's not simply biological aspects of tissue damage, but there are psychosocial elements at play, as well things like a person’s mood or confidence in their own abilities to do something,” he said. “Today’s evidence suggests CLBP likely comes from the brain and nervous system being a bit over-protective and generating a pain response – despite no obvious physical damage to the body.”

Although his review did not address what specific exercises were most effective for CLBP, Jones and his team recommended 33 “mechanisms” that people can use to relieve back pain, such as building muscle strength and flexibility or through social support and coping strategies.

“Many scientists have investigated this question before and the short answer is, there are no specific exercises recommended to alleviate CLBP,” he said. “But there are literally hundreds of studies on exercise for people with chronic pain, not only CLBP, and researchers consistently find exercise is one of the most effective treatments – it might not cause huge reductions in pain and disability, but it does help.”

Ehlers-Danlos Is Common Cause of Intractable Pain

By Forest Tennant, PNN Columnist

Ehlers-Danlos Syndrome (EDS) is the best known of the hereditary collagen disorders. From birth, persons with EDS are preprogrammed to start dissolving collagen at some location in the body, as it causes a defect in the way collagen is produced or maintained throughout all tissues.

The fine and soft tissues that are the most susceptible to dissolution are found in the joints, ligaments, eyes, spine, gums and intestine. When these tissues deteriorate and begin to dissolve, inflammation, pain and neurologic impairments begin. The tissue may or may not rebuild and usually leaves permanent damage, pain and/or disability.

Collagen deterioration may start in childhood or middle age. An early sign is being double-jointed or extremely flexible.

It is unknown currently what the exact mechanism is, or what precipitating factors such as virus or trauma that initiate this reaction. Regardless, collagen dissolution will move to a new and different locations once the hereditary preprogramming begins.

EDS commonly hits the spinal canal and spine. The first major problem may be a cerebral spinal fluid leak, protrusion of a disc, Tarlov cyst or arachnoiditis. Given its predilection to hit the spine, EDS may produce the complication of Intractable Pain Syndrome (IPS). In fact, it seems to be emerging as the first or second most common cause of IPS.

EDS Screening Test

Our research has found that a high percentage of patients who have EDS don’t know it. If you have developed a spine or pain problem without an injury or other obvious cause, you should be screened for EDS.

This questionnaire was recently published to help screen people for EDS.   

1. Do you have pain in multiple locations?

2. Do you have extreme fatigue?

3. Are you clumsy sometimes and fall or walk into objects?

4. Are some of the joints in your hands, feet, elbow, hips or knees “loose” or quite flexible?

5. Have you had a lot of sprains or joint dislocations?

6. Is your skin thin in places?

7. Are you double-jointed or able to bend your fingers, arms, or ankle backward?

8. Are your hands and feet cold much of the time?

9. Do you bruise easily or have bruises that suddenly occur?

10.  Is your skin “stretchy” in some places?

11.  Are you constipated a lot?

12.  Do you suffer from heart burn or frequent episodes of food regurgitation? 

If you answered “Yes” to 6 or more of the 12 questions, you should see a doctor and have the diagnosis confirmed by a genetic test or skin biopsy.

If you have EDS or a hereditary collagen disorder, there are foods, supplements and hormones you can take to help restore and rebuild lost tissue. Click here to see them. These tissue building recommendations from the IPS Research and Education Project are meant to complement and supplement your treatment program, but are not a substitute for inflammation and pain control.

Forest Tennant is retired from clinical practice but continues his research on intractable pain and arachnoiditis. This column is adapted from newsletters recently issued by the IPS Research and Education Project of the Tennant Foundation. Readers interested in subscribing to the newsletter can sign up by clicking here.

The Tennant Foundation has given financial support to Pain News Network and sponsors PNN’s Patient Resources section.  

Vibrating Belt Gets FDA ‘Breakthrough Device’ Designation for Osteoporosis

By Pat Anson, PNN Editor

The U.S. Food and Drug Administration has given “Breakthrough Device” designation to a vibrating belt that lowers the risk of bone fractures caused by osteoporosis. When worn around the waist, the OsteoBoost Vibration Belt delivers gentle stimulation to the hips and spine, simulating the effects of exercise and strengthening bones.

Osteoporosis is caused by the loss of bone mineral density (BMD) and is one of the most common health conditions associated with old age. More than 10 million Americans suffer from osteoporosis and 43 million have its precursor, osteopenia.

About 1 in 2 women and 1 in 4 men over the age of 50 will suffer an osteoporosis-related fracture, usually in their hip or spine. Breaking a bone is especially traumatic for the elderly and can lead to a cascade of health problems, including chronic pain, disability and early death.

Osteoporosis is currently treated with changes in diet, exercise and bisphosphonate drugs such as Fosamax, which slow the loss of BMD. However, long term use of bisphosphonates can lead to side effects such as bone, muscle or joint pain, as well as nausea and heartburn.

“For years, I have wanted a better option for my patients with low bone density that doesn’t have the potential side effects and the inconvenience of current drug treatments. With OsteoBoost we’ve created a safe, drug-free alternative that is easy and convenient. Now my patients with osteopenia have a new way to improve their bone health and reduce their risk of fracture,” says Dr. Shane Mangrum, co-founder of San Francisco-based Bone Health Technologies, which makes the OsteoBoost belt.

OsteoBoost uses whole body vibration (WBV) technology originally developed for NASA to improve the bone health of astronauts in a weightless environment. Here on earth, WBV has been found to improve bone mineral density, but it requires users to stand on a stationary vibrating platform, which isn’t always practical.

Because OsteoBoost is wearable, users can go for a walk or perform simple household chores while getting treatment. It’s recommended the device be used in 30-minute sessions, 3 to 5 times a week.

In a small clinical trial, OsteoBoost reduced bone loss in postmenopausal women by an average of 14%, a reduction similar to bisphosphonates. The National Institutes of Health is funding a larger, $2 million study of OsteoBoost that is currently enrolling postmenopausal patients. It is scheduled to be completed in early 2022.

If that study is successful, the FDA’s Breakthrough Device designation will speed up the agency’s review of OsteoBoost and help bring it to market sooner. The belt is not currently available for purchase and will require a a prescription when it is.

A 2011 Canadian study found that WBV did not improve bone mineral density in postmenopausal women who used a vibrating platform daily for a year while also taking vitamin D and calcium supplements.

"Although commercially available WBV devices are marketed to and used by patients, the beneficial effects of WBV on fracture risk and BMD have not been established, and recent randomized, controlled trials in postmenopausal women have shown conflicting results," said lead researcher Angela Cheung, MD, at University Health Network in Toronto. "Women would be farther ahead in making sure that they are exercising regularly and eating nutritious foods."

12 Holiday Gifts on Life With Chronic Pain

By Pat Anson, PNN Editor

If you live with chronic pain or illness and want to have a friend or family member get a better understanding of what you're going through -- here are 12 books and videos that would make great gifts over the holidays. Or you can always “gift” one to yourself.

Click on the cover to see price and ordering information. PNN receives a small amount of the proceeds -- at no additional cost to you -- for orders placed through Amazon. As an Amazon Associate, we earn from qualifying purchases. 

Finding a New Normal: Living Your Best Life with Chronic Illness by Suzan Jackson

For nearly 20 years, Suzan Jackson has lived with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS) — a condition she shares with two of her sons. In this book, Jackson shares what she and her family have learned about living well with chronic illness and finding a “new normal” through strong relationships, healthy emotions and finding joy in everyday life. The emphasis is on living life, not just enduring it.

War on Us by Colleen Cowles

Lawyer Colleen Cowles looks at how the war on drugs and myths about addiction have created a dysfunctional drug policy that prosecutes doctors for treating pain and stigmatizes patients for seeking relief. The U.S. has spent over a trillion dollars fighting the war and has little to show for it except some of the highest rates of addiction, overdose and incarceration anywhere in the developed world.

Ketamine Infusions: A Patient’s Guide by Berkley Jones

Berkley Jones looks at the increasing use of ketamine, a non-opioid analgesic, in treating chronic pain, depression, post-traumatic stress disorder and anxiety. This book is a useful guide if you are considering ketamine infusions and want to know how to select a provider, what to expect during infusions and possible side effects. Although primarily used to treat depression, some pain patients say ketamine is effective in treating neuropathy and CRPS.

Bitten: The Secret History of Lyme Disease and Biological Weapons by Kris Newby

Author Kris Newby began looking into the origins of Lyme disease after she was bitten by a tick and became seriously ill. Her research led her to a secret U.S. government program during the Cold War that used insects as biological weapons to spread disease. Newby believes the Lyme outbreak that began 50 years ago and has infected millions of Americans may have been the result of a military experiment gone wrong.

Vagina Problems: Endometriosis, Painful Sex and Other Taboo Topics by Lara Parker

A memoir by Lara Parker that explores — with unflinching honesty — her battle with endometriosis, a chronic vaginal condition that makes daily life difficult and sex painful. As a teenager, doctors initially dismissed Parker’s pain as “bad period cramps” and suggested her pain was psychological. She nearly checked herself into a mental institution before finally getting a proper diagnosis.

A Quick Guide to CBD by Dr. Julie Moltke

CBD won’t cure you of chronic pain, but Dr. Julie Moltke says cannabidiol can reduce pain, inflammation, anxiety and insomnia — and help make life more livable. This handbook is intended for beginners who want to learn how and when to take CBD, and are puzzled by all the hype surrounding vapes, oils, gummies and edibles on the market.

Pain Warriors by Tina Petrova

A documentary produced by patient advocate Tina Petrova that examines the poor treatment and medical neglect faced by millions of pain sufferers in North America. The film is dedicated to Sherri Little, a chronic pain patient who committed suicide after one last attempt to get effective treatment. Available on DVD or for streaming on Amazon Prime.

Together: The Healing Power of Human Connection by Dr. Vivek Murthy

This timely book by former U.S. Surgeon General Dr. Vivek Murthy looks at the importance of human connections and how loneliness affects our health and society at large. To combat loneliness, Murthy recommends spending at least 15 minutes each day connecting with people we care about and to give them our undivided attention.

Bottle of Lies: The Inside Story of the Generic Drug Boom by Katherine Eban

Wonder why that generic drug you take doesn’t seem to work? About 90% of pharmaceutical drugs are generic and most are manufactured overseas. While generics are promoted as cheaper alternatives to brand name drugs, journalist Katherine Eban found the generic drug industry rampant with greed, fraud and falsified manufacturing data — resulting in many patients consuming drugs that are ineffective or have dangerous side effects.

In Pain: A Bioethicist’s Personal Struggle with Opioids by Travis Rieder, PhD

Travis Rieder is a professor of bioethics at Johns Hopkins University who severely injured his foot in a motorcycle accident and became dependent on opioids while recovering from surgery. In this book, he shares his frustration with the healthcare system and how it often abandons patients to pain, addiction or both. Rieder serves on a CDC advisory panel that is helping the agency prepare an update of its controversial 2016 opioid guideline.

The Chronic Pain Management Sourcebook by David Drum

A comprehensive guide about chronic pain by medical journalist David Drum, who summarizes the many causes, types and treatments of pain. Drum also has tips on managing stress, anxiety, lack of sleep and depression. The book is easy to understand and would be a useful resource for family members, friends and caretakers who want to understand and help someone living with chronic pain.

A Little Book of Self Care: Trigger Points by Amanda Oswald

This well-illustrated book provides 40 simple, step-by-step exercises you can use to manage back pain, migraine and other painful conditions. Author Amanda Oswald explains how “trigger points” — small knots of muscles and connective tissue — can be relieved through self-massage and the “power of touch” without visiting a chiropractor or physical therapist.

These and other books and videos about living with chronic pain and illness can be found in PNN’s Suggested Reading section.

What Does Intractable Pain Really Mean?

By Forest Tennant, PNN Columnist

Many people have chronic pain. If you are over age 60, you probably have some bothersome pain from arthritis, bunions, carpal tunnel, TMJ or a neuropathy. These common conditions cause intermittent pain which may be quite bothersome.

There are some unfortunate persons, however, who have terrible, grueling pain that just won’t go away. It’s there 24/7. It’s the kind that keeps you awake and makes you feel so sick you can’t read, think or socialize, and it will force you to take cover on the couch or in bed.

The pain can be primarily located anywhere on the body such as the hip, neck or back. But when it flares you feel it “all over” and it is intense.

This constant pain means you have a primary or underlying disease or injury that has emitted and sent so much electricity to the central nervous system (CNS) that inflammation forms inside the brain or spinal cord. The brain chemicals and neurotransmitter-receptor systems (NTRS) that normally control and shut down pain become damaged and impaired. The chemicals your own body makes for pain control, as well as pain medications, ​stop working correctly because of the damage to these chemical-tissue receiving sites.

Constant pain means you ​need a program or protocol to treat your basic injury or disease. One that reduces electric impulses and helps rebuild the damage to the NTRS in your spinal cord and brain. Symptomatic pain relievers are usually a must, but they don’t treat or reverse your basic problem.

Intractable Pain Syndrome

Due to new research, we now call the constant pain condition the Intractable Pain Syndrome (IPS). It’s called a “syndrome” because of the many manifestations of the condition.

IPS is a complication of a disease or injury. To obtain some relief and recovery, every person with IPS must know the name of the disease or injury that started the pain, and the anatomic location on the body that first sustained pain. Our studies have found that many persons with IPS don’t have a diagnosis for the cause of their pain and may have even forgotten the site on their body where the pain originated.

Common causes of IPS are:

• Adhesive Arachnoiditis

• Reflex Sympathetic Dystrophy (RSD) or Complex Regional Pain Syndrome (CRPS)

• Advanced Osteoarthritis

• Genetic Connective Tissue/Collagen Disorder (Ehlers-Danlos Syndrome)

• Traumatic Brain Injury (stroke, trauma)

• Autoimmune Disease

There are other rare causes of IPS, including porphyria, sickle cell disease, interstitial cystitis, Lyme disease and rare genetic disorders.

Vague complaints or diagnoses about back pain, headaches, sprains, strains or “pain all over” are not specific enough to get you much relief or recovery and can’t be considered a legitimate cause of IPS. That’s why it is important to know the specific cause of your pain. What was the specific diagnosis that warranted an epidural injection, surgery or an opioid prescription?

Regardless of what caused your IPS or how long you’ve had it, your original pain site is problematic and needs to be identified. The site is generating inflammation and electricity, and could be scarred in a way that blocks the normal flow of electricity through the body.

The major goal of the IPS Research and Education Project is to bring awareness that simple chronic pain and IPS are quite different entities. A second goal is to bring recognition, prevention and treatment of IPS into mainstream medical practice at the community level. IPS must be known, recognized and treated in the ambulatory medical system like any other long-term care problem such as rheumatoid arthritis, emphysema, diabetes, asthma, or schizophrenia.

It must also be done along with physical, psychologic and pharmaceutical measures that are acceptable to all concerned parties and that don’t require high, risky dosages of abusable drugs.

Forest Tennant is retired from clinical practice but continues his groundbreaking research on intractable pain and arachnoiditis. This column is adapted from newsletters recently issued by the IPS Research and Education Project of the Tennant Foundation. Readers interested in subscribing to the newsletter can sign up by clicking here.

The Tennant Foundation has given financial support to Pain News Network and is currently sponsoring PNN’s Patient Resources section.  

FDA Designates First Virtual Reality Device for Chronic Pain

By Pat Anson, PNN Editor

AppliedVR, a Los Angeles-based virtual reality company, has announced that its EaseVRx headset has received Breakthrough Device Designation from the Food and Drug Administration for treating fibromyalgia and chronic intractable low back pain.

EaseVRx is the first virtual reality (VR) device to get a Breakthrough Designation from the FDA for treating a chronic pain condition. The designation speeds up the development and review of new medical devices that treat life-threatening or irreversibly debilitating diseases or conditions. It could also speed up insurance coverage of VR therapy for chronic pain.

“AppliedVR is the most evidence-backed VR platform on the market, and today’s FDA designation demonstrates that health experts across the spectrum recognize the therapeutic potential of VR as a viable treatment for pain,” Matthew Stoudt, CEO and co-founder of AppliedVR, said in a statement.

“Now, with the COVID-19 pandemic severely disrupting Americans’ ability to get in-person care safely, we’re looking forward to getting EaseVRx into the hands of people suffering from pain. Providers believe in it, patients want it, and payers are coming around to it.” 

AppliedVR funded a recent clinical trial that showed VR therapy can be self-administered at home to treat chronic pain. Patients living with fibromyalgia or chronic lower back pain were given VR headsets and instructed to watch at least one virtual reality program daily for 21 days.

The programs immerse users in a “virtual” environment where they can swim with dolphins, play games or enjoy beautiful scenery. The goal is to help patients learn how to manage their pain and other symptoms by distracting them and making their pain seem less important

At the end of the study, 84 percent of the patients reported they were satisfied with VR therapy. Their pain intensity was reduced an average of 30 percent. Physical activity, mood, sleep and stress levels also improved.

“Virtual reality is a promising skills-based behavioral medicine that has been shown to have high patient engagement and satisfaction,” said Beth Darnall, PhD, AppliedVR’s chief science advisor. “However, chronic pain patients to date have had very limited access to it, so we’re excited to continue working with the FDA to develop our platform and get it into the market faster.”

PNN columnist Madora Pennington, who lives with chronic pain from Ehlers-Danlos Syndrome, recently reviewed one of AppliedVR’s headsets. She said watching VR programs helped calm and relax her.

“The benefits of VR therapy continued for me after the sessions ended. When pain or panic about pain began to set in, I found it drifts away rather than latching onto me like it used to,” Madora wrote. “After a couple weeks of VR, during a visit to physical therapist, I noticed I was no longer afraid of her touching my neck and back, and actually enjoyed it.”

AppliedVR’s technology is being used in hundreds of hospitals, but is not expected to be available for home use until next year. The company is working with Geisinger Health and Cleveland Clinic on two studies to see if VR therapy can be used as an opioid-sparing tool for acute and chronic pain.

VR for Phantom Limb Pain

Virtual reality technology received another boost this week when the Department of Defense awarded Chicago-based Coapt a $2.3 million grant to develop virtual reality therapies for phantom limb pain. Wounded veterans and amputees who have lost arms or legs often suffer from nerve pain and other sensations from their missing limbs.

"Phantom limb pain is a serious and persistent challenge for many upper and lower-limb amputees, and new, technology-based therapies have incredible promise," Blair Lock, co-founder and CEO of Coapt, said in a statement. "Preliminary work has shown that VR-based, actuated therapy can manage pain more effectively and have lasting effects. This grant will allow us to further study this therapy and bring to market a solution for those suffering from phantom limb pain in a way that also happens to be engaging."

Coapt has previously developed a VR-based therapy to help upper-limb amputees improve control of their prostheses. The technology also shows promise as a treatment for phantom limb pain. Coapt will use the grant money to further study the effectiveness of VR therapy and create a commercially viable product for both civilians and veterans with upper and lower-limb amputations.

Quell Customers to Receive $3.9 Million in Refunds

By Pat Anson, PNN Editor

The U.S. Federal Trade Commission is sending refunds of nearly $3.9 million to consumers who bought Quell, a wearable nerve stimulation device touted as a drug-free treatment for chronic pain. The refunds are part of a settlement the FTC reached in March with NeuroMetrix – the maker of Quell – over deceptive advertising.

An FTC complaint alleged that NeuroMetrix and CEO Shai Gozani advertised Quell as an effective treatment for fibromyalgia, osteoarthritis, sciatica, shingles and other chronic pain conditions without reliable scientific evidence to back it up.  

Two clinical studies cited in Quell advertisements had “substantial flaws,” according to the FTC, while a third study was based on a marketing survey conducted by the company to “generate potential advertising claims” about the device. The FTC also objected to claims that Quell was “clinically proven” and “FDA cleared” for chronic pain relief.

“Defendants engaged in their unlawful acts and practices repeatedly over a period of more than four years, continued their unlawful acts or practices despite knowledge of complaints that advertising claims for Quell were not substantiated and went beyond claims the FDA allowed for similar devices, and continued such deceptive advertising unabated until FTC staff notified them it would recommend law enforcement action,” the FTC complaint said.

Neurometrix settled the case – without admitting or denying the allegations – for $4 million. The company also agreed to stop claiming that Quell provides relief for chronic or severe pain beyond the knee area where the device is worn.

The FTC is using the settlement funds to send 2,144 refund checks and 67,998 refunds via PayPal to Quell purchasers. The average refund amount is $55.10 per customer. Consumers who do not receive a refund, but believe they should, should contact the refund administrator, Rust Consulting, at 1-866-403-6545.

The Quell device sells for $299, while an older version is available for $199. Quell is sold over-the-counter, does not require a prescription and is not usually covered by insurance.

NeuroMetrix recently announced that Quell will be used in a clinical trial on the use of transcutaneous electrical nerve stimulation (TENS) for chemotherapy-induced peripheral neuropathy  The study is being conducted at the University of Rochester School of Medicine and Dentistry, with funding from the National Institutes of Health. Quell is also being evaluated in a small study as a treatment for fibromyalgia.